Electric switch



S. R. JACKSON June 1 192s., 1,586,998

ELECTRIC SWITCH Filed Jan. 10. 1923 IN VEN TOR.l

A TT ORNE Y,

entrenan n. mensen, on sa; H

M93 fe atteste liepen, Yoran, Assiettes or onnnnnr rro Lewis yJ.

,9393595340255NEWFOK- l I i nnncrnic SWITCH.

Application lerdpanuary 10, 1923. Se1ia1No..G11,8,97.

This invention relates `to 4electric switches and has for Vits object a switch whichvis par ticularly simple and economical in ,const-rnc tion, and highly eliicient and extremely ldurable in use,A and especially adapted for use on motor vehicles to control the flow of current to the traffic signal lamps as the stop or other signal lights placed in most instances on the rear of automobiles and other motor vehicles.

rl`he invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

ln describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 isa longitudinal horizontal sectional view of this switch.

Figure 2 is a vertical transverse sectional view.

This switch comprises a support or guide, a switch member supported in the guide and slidable rcctilinearly lengthwise otl the guide, a contact carried by the switch member, a flexible contact lined to the guide and being normally out of engagement with the switch contact and extending lengthwise of the switch member in the path of the contact on the switch member so that the contact or the switch member engages the lined contact upon a .small initial movement of the switch member and remains in Contact therewith during further movement of the switch member.

The support or guide is here illustrated as in the form of a tubular and cylindrical housing 1 closed at one end by a head 2 and also having spaced apart heads 3, l therein formed with guide openings 5, 6 therein, these heads 3, a being preferably of insula tion. u

The switch member 7 comprises a rod slidable through the openings, (il in the heads 3, #l and extending at one end outside of the housing 1 for connection to operating means. The head l is located intermediate of the ends of the housing, and the rod 7 extends to the rear side of such head and is formed with a should-er 8 at its innerrend, and a retracting spring 9 encircles the rod be tween the head 4 and shoulder 8. 10 is a contact on the rod. The rod is preferably a conductor and is connected to a source of electric energy by a wire 11 connected to .the portion 4:thereof located outside ofthe housing 'i 12 is contact ,fixed ino the housing and lar- "in the ,path of the contact 10.l

The contacthas a ba@ portion l13 inten :posed between .the .periphery f .theleail' 4 i contact 9. A wire 15 is connected to the base portion 13 by a binding screw 16 which threads into the head l, this wire being connected to the signal lamp which is grounded or connected by a return wire to the source of electric energy.

The switch member or rod 7 is connected to an operating member .as the brake pedal of the motor vehicle in any suitable manner as by a cable 17 coupled to the outer end o the rod 7 through a block 18 of insulation.

The housing is supported to any suitable part of the :trame or body 19 of the vehicle and as here illustrated, it is compos-ed of the lengthwise sections or halves joined to gether at 20 along like edges and having outwardly and radially extending flanges 21 at its other edges for attachment to the support 19. These flanges .are shown as formed with laterally angularly bent flanges 22 which are secured as by screws 23 to the support. The housing is normally of metal and hence is insulated at 24 from the frame. The heads 3, el and block 17 insulate the switch member.

ln operation, upon slight depression of the brake pedal or other operating member. the contact 9 engages the Contact 12 and closes the circuit to the signal or stop light and upon further depression of the pedal the contact rides along the contact 12. lVhen the pedal is releasedfthe spring 10 returns the switch member 7 t-o its starting position and breaks the circuit.

This switch is particularly advantageous in that it in addition to being simple and economical in construction, is capable of the long frequent and hard usage to which such switches are subjected in ordinary use, without getting out of order.

1. An electric switch comprising a tubular housing having spaced apart heads formed with guide openings, a movable .switch member slidable in the openings lengthwise or" the housing, .a switch contact carried by the switch member within the housing, a contact fixed in the housing and having a porm tion extending lengthwise of the switch member in the path of the Contact thereon,

said housing comprising two lengthwise sections secured together' at like edges and having their other edges meeting and formed with outwardly extending supporting flanges for attachment to a support, substantially as and for the purpose set forth.

2. An electric switch comprising a tubular housing split lengthwise along one side ,thereo and provided with outwardly eX- tending flanges along the line of division itor attachment to a support, a movable switch member movable lengthwise of the housing and having a Contact, and a contact {iX-ed in the housing and arranged in the path of the movable switch member, substantially as and for the purpose described.

In testimony whereof, l have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of vNew York, this 13th day of December, 1922.

SHUMEN R. JACKSON. 

